Weather Alert
Greshams Lake Weather Warning NWS WEATHER ALERT FOR THE GRESHAMS LAKE, TN AREA - Issued: 127 AM CDT Wed Sep 16 2026 Greshams Lake Weather Warning

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Greshams Lake, TN Weather - Hour by Hour Forecast

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Greshams Lake, TN Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 80°F27°C, dew point 68°F20°C, humidity 66%. Wind direction is S at 7 mph11 km/h with visibility of 10 mi16 km. Barometric pressure is 30.17 in1022 mb.
Today - Sunny. Highs in the upper 90s. South winds around 5 mph. Heat index values up to 107... Full Forecast
Tonight - Mostly clear. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable... Full Forecast

Greshams Lake Hourly Weather

24 Hour Forecast Scroll
Wed, Sep 16
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Greshams Lake, TN Hourly Weather - Clear - 4:00 AM Greshams Lake, TN Hourly Weather - Clear - 5:00 AM Greshams Lake, TN Hourly Weather - Clear - 6:00 AM Greshams Lake, TN Hourly Weather - Clear - 7:00 AM Greshams Lake, TN Hourly Weather - Clear - 8:00 AM Greshams Lake, TN Hourly Weather - Clear - 9:00 AM Greshams Lake, TN Hourly Weather - Clear - 10:00 AM Greshams Lake, TN Hourly Weather - Clear - 11:00 AM Greshams Lake, TN Hourly Weather - Partly Cloudy - 12:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 1:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 2:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 3:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 4:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 5:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 6:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 7:00 PM Greshams Lake, TN Hourly Weather - Partly Cloudy - 8:00 PM Greshams Lake, TN Hourly Weather - Clear - 9:00 PM Greshams Lake, TN Hourly Weather - Clear - 10:00 PM Greshams Lake, TN Hourly Weather - Clear - 11:00 PM Greshams Lake, TN Hourly Weather - Clear - 12:00 AM Greshams Lake, TN Hourly Weather - Clear - 1:00 AM Greshams Lake, TN Hourly Weather - Clear - 2:00 AM Greshams Lake, TN Hourly Weather - Clear - 3:00 AM
Clear Clear Clear Clear Clear Clear Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Clear Clear Clear Clear
79°F26°C 79°F26°C 78°F26°C 78°F26°C 83°F28°C 87°F31°C 92°F33°C 94°F34°C 97°F36°C 99°F37°C 100°F38°C 100°F38°C 101°F38°C 99°F37°C 97°F36°C 95°F35°C 93°F34°C 90°F32°C 88°F31°C 87°F31°C 85°F29°C 84°F29°C 83°F28°C 82°F28°C
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0% 0% 0% 0% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 0% 0% 0% 0% 0% 0% 0% 0%
68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 68°F20°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C
69% 69% 74% 74% 63% 57% 49% 46% 41% 38% 36% 36% 34% 36% 38% 40% 43% 49% 52% 53% 59% 61% 63% 65%
S S SSE SSE SSE S S S S S S SSE SSE SSE SSE SSE SSE SSE SSE SSE S S S S
5 mph 5 mph 5 mph 5 mph 5 mph 8 mph 8 mph 8 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 9 mph 9 mph 9 mph 6 mph 6 mph 6 mph 7 mph 7 mph 7 mph 5 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
Clouds
Temperature
Precip. Type
POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KMEM model statistics.

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Prob Precip % = Probability of Precipitation.

Greshams Lake 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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